.head{
	min-height: 244px;
	background-image: url(../img/yuantiao.jpg);
}
.top{
	min-height: 400px;
	padding: 10px 10px 10px 10px;
	background-color: white
}
.top-tr{
	padding-top: 10px;
}
.h2{
	margin-top: 20px;
	margin-bottom: 20px;
}
